GarPsi5 will edit position data in any map datum supported by the GARMIN GPS, allowing you to sort waypoints by distance. Position data transmitted or received by the GPS are displayed in WGS 84 map datum.
You can also conveniently enter waypoints onto the Psion and then transfer them to the GPS.
Tucows, Inc has graciously donated a copy of this software to the Internet Archive's Tucows Software Archive for long term preservation and access. Please check the Tucows website for all current versions of the software.